How to Gear reduction 82 200 engine in 200e for more torque?

[SuperRed]

I'm a new member and new too trikes. I have a 200 trike engine and tranny in a 83 big red and I was reading about gear reductions and how they can give the engine more torque for going through mud
(Which Is the only thing I'm using her for, to show up the 9grand atvs) anyway if anybody could tell me how I would go about doing this would be greatly appreciated, will post pictures if anyone responds.

[jeswinehart]

On a 1983 (? ~ somewhere around that year anyway) ATC 185-S I would put on a 2 tooth smaller primary sprocket and that made it a real stump jumper. Lost all its top speed but it had plenty of grunt.
Best thing on that machine I only had to adjust chain, not replace.

Hoping you get some pictures of the mud run and post up Gavin (please).

john

[MNhondaguy]

The 200e has a sub transmission that gives you low range. But I highly doubt that any trike will outdo a done up quad in mud unless it has some serious time money and love put into it.

[SuperRed]

Awesome thanks for the advice, and will I have to get a new sprocket machined or will it be easy to buy one? Also when the mud comes I will for sure put up some pics and videos of me trolling past the stuck atvs just for you hondaguy!

[SuperRed]

Also I don't have a 200e tranny or engine. For some reason the previous couple owners replaced it with a 82 200

[jeswinehart]

I'm sure those primary sprockets are readly available. It seems on the after market one I had I could not use the oem retainer clip thing, the piece that after you put the sprocket on it would go on next and you turned it slightly,,,, I used a snap ring instead.
I used that 185-S for pulling a set of gang mowers to mow my lawn and when I needed to ride somewhere other then my yard I would put the stock sprocket back on. I am positive it was a 2 tooth smaller for pulling the 3 gang mowers.

[jeswinehart]

Oh yeah, there are a few available > http://www.ebay.com/sch/i.html?_trksid=p3984.m570.l1313.TR0.TRC0.H0.Xatc+2 00+primary+sprocket&_nkw=atc+200+primary+sprocket&_sacat=0&_from=R40
I ain't sure what stock is, I'd hafta dig out a manual or two.

[SuperRed]

Awesome didnt think it woukd be that easy. So just replacing the stock primary socket with one of those 2 less toothed ones and reducing the chain will give me a slightly noticable torque difference?

[DohcBikes]

Two teeth on the front sprocket will be more than slightly noticeable.

1 tooth on the front would be noticeable as well.

[SuperRed]

Awesome didnt think it woukd be that easy. So just replacing the stock primary socket with one of those 2 less toothed ones and reducing the chain will give me a slightly noticable torque difference?

[SuperRed]

Is there alot of work involved in taking the chain and front sprocket off to install new one?

[DohcBikes]

Not really, but work is a relative term these days. I suggest you consult a service manual for the procedure, although it is fairly self explanatory.

If you do not have a service manual, I suggest you download one for future reference.

[SuperRed]

Ya i just ment would i have to take apart the trike just to do this or do i just have to rake the wheel off kinda thing

[barnett468]

So just replacing the stock primary socket with one of those 2 less toothed ones and reducing the chain will give me a slightly noticable torque difference?It will be big difference, however, it will also reduce top speed by maybe 10 mph.



Is there alot of work involved in taking the chain and front sprocket off to install new one?

i just ment would i have to take apart the trike just to do this or do i just have to rake the wheel off kinda thingAs DohcBikes says, it should be self explanatory. The front gear is exposed on that non e type 200 engine so that is easy.

If there are no rear chain shrouds it is pathetically easy, get a beer, find the master link, remove it, remove front sprocket, install new sprocket, loosen axle carrier and move it forward, install chain, if necessary cut to length with chain breaker or by grinding the head of the pins off, re-install master link, adjust chain by moving carrier front or rearward, tighten chain, drink more beer.


If there are rear chain guards you can:

loosen axle carrier and move it forward

rotate axle until master link appears at front sprocket

remove sprocket

remove master link

reinstall sprocket

reinstall chain but try and pull it tight so that you have one extra link you need to remove.

Remove 2” rubber plug in side of chain cover.

Check up and down play in chain. It should be around 1” total on that model. If there is not then move axle carrier until proper play is achieved. One of the points of doing this is to determine if you need to shorten the chain which I think you will by probably just one link.

If you need to shorten the chain, put a wire on the bottom end of the chain, pull the chain from the top until you have room to cut it.

Once cut, move axle carrier forward

install master link

put chain on sprocket

install sprocket with chain on it.

Readjust chain tension via axle carrier.

Tighten bolts

Drink more beer.


200s parts fiches

http://www.cmsnl.com/honda-atc200e-1983-big-red-usa_model7178/partslist/F++0901.html#results

http://www.cmsnl.com/honda-atc200e-1983-big-red-usa_model7178/partslist/


free online manuals. Might take 6 minutes to load.

http://www.oscarmayer.net/atc/manuals/

[SuperRed]

Wow thanks barnett468 that is exactly what i was looking for! And what beer do you recommend im stumped.

[jeswinehart]

As I recall, I did not need to modify the chain or take the link apart just loosen/take up the slack via the adjuster.

[SuperRed]

All i can find is the rear drive sprocket pretty sure its 4 teeth less. Is that just too ridiculous? And where did you get your primary sprocket jesswinehart?

[barnett468]

Wow thanks barnett468 that is exactly what i was looking for!

And what beer do you recommend im stumped.That’s an easy one!

http://brandmediaweek.typepad.com/.a/6a00d834519bc269e2010536d1d33a970c-300wi




All i can find is the rear drive sprocket pretty sure its 4 teeth less. Is that just too ridiculous?4 teeth on the rear is around the equilivant of 1 tooth on the front, however, a SMALLER rear spkt will REDUCE bottom end and INCREASE top end.




And where did you get your primary sprocket jesswinehart?
From jeswinehart post 7.

http://www.ebay.com/sch/i.html?_trksid=p3984.m570.l1313.TR0.TRC0.H0.Xatc%2 0200%20primary%20sprocket&_sacat=0&_from=R40&_nkw=atc+200+primary+sprocketFROM

[SuperRed]

Bottom end being torque? And top speed?

[barnett468]

Bottom end being torque? And top speed?

I don't know a better way to explain it but I'll try.

If you can go 10 mph in 1st now with the throttle wide open at max engine rpm's, you might go 7 with a 4 tooth bigger rear or 1 tooth smaller front, or maybe 13 with a 4 tooth smaller rear or 1 tooth bigger front.

If you want to pull 50 cases of Saint Pauli girl up a hill, you want a bigger rear and/or a smaller front sprocket.

Perhaps it's best if you wait until AFTER you change the gears before you start drinkin.

Ok, sorry, just couldn't help myself.

http://www.freesmileys.org/smileys/smiley-laughing013.gif (http://www.freesmileys.org/smileys.php)

[DohcBikes]

Torque is torque and the only part that you can change is applied torque.

In this case, "bottom end" means more applied torque at low speeds.

Top speed means top speed, or, the fastest speed the machine will achieve.

Larger rear sprocket, more applied torque at low speed/mph at any given RPM.

Smaller rear sprocket, more top speed, less applied torque at any given RPM.

Top speed gains are restricted by wind resistance and actual torque and horsepower at any given RPM in top gear, so there's a limit to his small you can go and still see gains in the peak mph.

4 teeth larger in the rear will equal more applied torque in any gear at any rpm. 4 teeth would be very noticeable.

At some point, going too big will be useless and detrimental to the engine as it will be hard to operate it without being in the upper rpm range all the time.

Also, too small, new chain needed. Too big, new chain needed.

[barnett468]

Torque is torque and the only part that you can change is applied torque.

In this case, "bottom end" means more applied torque at low speeds.

Top speed means top speed, or, the fastest speed the machine will achieve...
OMG, Now there's TWO of us. Please kill me!


Torque explained in short video link below.

http://www.youtube.com/watch?v=6GDDhetij0I&sns=em


http://www.freesmileys.org/smileys/smiley-laughing025.gif (http://www.freesmileys.org/smileys.php) http://www.freesmileys.org/smileys/smiley-laughing025.gif (http://www.freesmileys.org/smileys.php) http://www.freesmileys.org/smileys/smiley-laughing025.gif (http://www.freesmileys.org/smileys.php)